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48469 (1991 TQ1)
Classification: Main-belt Asteroid          SPK-ID: 2048469
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2163595717442612 7.3287e-08  
a 2.329176373373762 1.1832e-08 au
q 1.825236770713764 1.6966e-07 au
i 24.63530993708697 7.7172e-06 deg
node 21.03708250966437 1.0409e-05 deg
peri 7.286306469636832 1.4643e-05 deg
M 10.19242895007217 9.9899e-06 deg
tp 2458963.739857779673
(2020-Apr-24.23985778)
3.596e-05 TDB
period 1298.380519907777
3.55
9.8938e-06
2.709e-08
d
yr
n .2772684852246324 2.1128e-09 deg/d
Q 2.833115976033761 1.4392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2198  
   data-arc span      10613 days (29.06 yr)  
   first obs. used      1991-10-10  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3383  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:37:14  

Additional Information
 Earth MOID = .830563 au 
 Jupiter MOID = 2.63241 au 
 T_jup = 3.421 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO395460  
diameter diameter 4.802 km 0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.8182 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.302   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48469 (1991 TQ1)          Discovered 1991-Oct-10 by Alu, J. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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